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FW: [motm] Quad Quantizer: need your inputs

2007-08-26 by Tkacs, Ken

A quantizer AND ASR in one unit? This could be my favorite module of the past five years. (Then I'll be pining for a pitch-to-voltage converter...)
 
I much prefer USB over MIDI for programming, personally.

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From: motm@yahoogroups.com on behalf of Paul Schreiber
Sent: Sun 8/26/2007 11:21 AM
To: MOTM List
Subject: [motm] Quad Quantizer: need your inputs

A "fallout" of designing the expansion module for the Cloud Generator is a
nice 4ch (quad) quantizer in a 2U wide panel.

The UI is a 16ch x 2 line LCD with 4 rotary encoders. These select the scale
for each channel. LCD displays the scale name. For a relatively small price,
I can add a USB port to allow downloading of your own scales (as long as I
have people willing to write the host app).

I could aso have 4 pots for transposing the scale (say in 1 semitone steps).

And, there could be a "cascaded S&H mode" where there is a clock (int or
ext) to sample input #1, next pulse #1 is copied to #2, etc ("analog shift
register"). Maybe that UI is a 3-position toggle with:

QUANTIZE
SH NORM
SH SHIFT

Normal is 4 independent S&H channels (sharing the common clock).

I suppose one could go "nuts" and make a super-PSIM whiz-bang but maybe that
is later down the road. I want something with less than 1 man-year of SW
development :)

So, show me you panel mockups/feature list. The LCD is 80mm lond and 35mm
wide. There are 2 encoders on the top and 2 on the bottom.

Paul S.

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RE: [motm] Quad Quantizer: need your inputs

2007-08-27 by John Loffink

Given that the MIDI Tuning Standard program number is part of the MTS file,
I expect programming of the quantizer over USB to be cumbersome.  I wouldn't
expect the standard PC and MAC tuning tools to implement USB, and I don't
expect general USB dump tools to support MTS.  You'd have to create the file
on SCALA for PC or Li'l Miss' Scale Oven for MAC, including the embedded
program number, then do the actual transfer with a USB utility.  It is
better to have the program number accessible from the tool used to do the
programming, so that you can change it on the fly as necessary.

So my vote is for a MIDI jack.  Without the programming feature
(microtunable), a quantizer is useless to me.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com

RE: [motm] Quad Quantizer: need your inputs

2007-08-27 by Jason Proctor

if the module implements the USB MIDI specification, it will appear 
to the host as a MIDI interface. no drivers or special software 
necessary.

(personally however i don't much care whether it has a MIDI jack or a USB one)

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>Given that the MIDI Tuning Standard program number is part of the MTS file,
>I expect programming of the quantizer over USB to be cumbersome.  I wouldn't
>expect the standard PC and MAC tuning tools to implement USB, and I don't
>expect general USB dump tools to support MTS.  You'd have to create the file
>on SCALA for PC or Li'l Miss' Scale Oven for MAC, including the embedded
>program number, then do the actual transfer with a USB utility.  It is
>better to have the program number accessible from the tool used to do the
>programming, so that you can change it on the fly as necessary.
>
>So my vote is for a MIDI jack.  Without the programming feature
>(microtunable), a quantizer is useless to me.
>
>John Loffink
>The Microtonal Synthesis Web Site
>http://www.microtonal-synthesis.com
>The Wavemakers Synthesizer Web Site
>http://www.wavemakers-synth.com